I'm new to blender, Help me!
I’ve been using Blender for a long time now and I’ve always been working on a MacBookPro Mid 2014. Depending on what you do, you will have to know what graphics card you use. I wouldn’t suggest you using NVIDIA because they have graphic cards specialized for gaming and not 3D rendering and video editing. 

If you are doing basic modeling you don’t have know art and all that stuff. If you are aiming to do sculpting and texture painting it’s basically essential. I hope that concludes everything